public function addRange($fromValue = null, $toValue = null, $key = null)
{
if (is_null($fromValue) && is_null($toValue)) {
throw new InvalidException('Either fromValue or toValue must be set. Both cannot be null.');
}
$range = [];
if (!is_null($fromValue)) {
$range['from'] = $fromValue;
}
if (!is_null($toValue)) {
$range['to'] = $toValue;
}
if (!is_null($key)) {
$range['key'] = $key;
}
return $this->addParam('ranges', $range);
} /**
* @group unit
*/
public function testRangeAggregationWithKey()
{
$agg = new Range('range');
$agg->setField('price');
$agg->addRange(null, 50, 'cheap');
$agg->addRange(50, 100, 'average');
$agg->addRange(100, null, 'expensive');
$expected = array('range' => array('field' => 'price', 'ranges' => array(array('to' => 50, 'key' => 'cheap'), array('from' => 50, 'to' => 100, 'key' => 'average'), array('from' => 100, 'key' => 'expensive'))));
$this->assertEquals($expected, $agg->toArray());
}
